STAC9752AXTAED1X IDT, Integrated Device Technology Inc, STAC9752AXTAED1X Datasheet - Page 86

• Manufacturer Part Number: STAC9752AXTAED1X
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of STAC9752AXTAED1X

• Lead Free Status / RoHS Status: Compliant

IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
Figure 23 illustrates a state when all the mixers should work with the static volume settings that are
contained in their associated registers. This configuration can be used when playing a CD (or exter-
nal LINE_IN source) through the STAC9752A/9753A to the speakers, while most of the system in
low power mode. The procedure for this follows the previous example, except that the analog mixer
is never shut down.
Normal
PR0=0 & ADC=1
Figure 23. Powerdown/Powerup Flow With Analog Still Alive
PR0=1
ADCs off PR0
PR1=0 & DAC=1
PR1=1
DACs off PR1
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PR4=1
Digital I/F off
Warm Reset
PR4
STAC9752A/9753A
Shut off
AC-Link
PC AUDIO
V 1.5 1206